<div class="container">
    <div class="form-box"  >
        <h2>Step 4: 环境整理</h2>
        <form id="install_ok" action="/setup/installer.php" onsubmit="return false;"
              onclick="checkEnv('install_ok','install_ok','✖')">
            <button value="开始整理" type="submit">
                <span></span>
                <span></span>
                提交
                <span></span>
                <span></span>
            </button>
            <div class="console"></div>
        </form>
        <a id="next" class="next-button" href="/">开始</a>
    </div>
</div>